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/*
* Copyright 2007-2008 Peter Hutterer
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Author: Peter Hutterer, University of South Australia, NICTA
*/
/***********************************************************************
*
* Request to query the pointer location of an extension input device.
*
*/
#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#include <X11/X.h> /* for inputstr.h */
#include <X11/Xproto.h> /* Request macro */
#include "inputstr.h" /* DeviceIntPtr */
#include "windowstr.h" /* window structure */
#include <X11/extensions/XI.h>
#include <X11/extensions/XI2proto.h>
#include "extnsionst.h"
#include "exevents.h"
#include "exglobals.h"
#include "eventconvert.h"
#include "scrnintstr.h"
#include "xkbsrv.h"
#ifdef PANORAMIX
#include "panoramiXsrv.h"
#endif
#include "xiquerypointer.h"
/***********************************************************************
*
* This procedure allows a client to query the pointer of a device.
*
*/
int
SProcXIQueryPointer(ClientPtr client)
{
char n;
REQUEST(xXIQueryPointerReq);
swaps(&stuff->length, n);
swaps(&stuff->deviceid, n);
swapl(&stuff->win, n);
return (ProcXIQueryPointer(client));
}
int
ProcXIQueryPointer(ClientPtr client)
{
int rc;
xXIQueryPointerReply rep;
DeviceIntPtr pDev, kbd;
WindowPtr pWin, t;
SpritePtr pSprite;
XkbStatePtr state;
char *buttons = NULL;
int buttons_size = 0; /* size of buttons array */
REQUEST(xXIQueryPointerReq);
REQUEST_SIZE_MATCH(xXIQueryPointerReq);
rc = dixLookupDevice(&pDev, stuff->deviceid, client, DixReadAccess);
if (rc != Success)
{
client->errorValue = stuff->deviceid;
return rc;
}
if (pDev->valuator == NULL || IsKeyboardDevice(pDev) ||
(!IsMaster(pDev) && !IsFloating(pDev))) /* no attached devices */
{
client->errorValue = stuff->deviceid;
return BadDevice;
}
rc = dixLookupWindow(&pWin, stuff->win, client, DixGetAttrAccess);
if (rc != Success)
{
SendErrorToClient(client, IReqCode, X_XIQueryPointer,
stuff->win, rc);
return Success;
}
if (pDev->valuator->motionHintWindow)
MaybeStopHint(pDev, client);
if (IsMaster(pDev))
kbd = GetPairedDevice(pDev);
else
kbd = (pDev->key) ? pDev : NULL;
pSprite = pDev->spriteInfo->sprite;
memset(&rep, 0, sizeof(rep));
rep.repType = X_Reply;
rep.RepType = X_XIQueryPointer;
rep.length = 6;
rep.sequenceNumber = client->sequence;
rep.root = (GetCurrentRootWindow(pDev))->drawable.id;
rep.root_x = FP1616(pSprite->hot.x, 0);
rep.root_y = FP1616(pSprite->hot.y, 0);
rep.child = None;
if (kbd)
{
state = &kbd->key->xkbInfo->state;
rep.mods.base_mods = state->base_mods;
rep.mods.latched_mods = state->latched_mods;
rep.mods.locked_mods = state->locked_mods;
rep.group.base_group = state->base_group;
rep.group.latched_group = state->latched_group;
rep.group.locked_group = state->locked_group;
}
if (pDev->button)
{
int i, down;
rep.buttons_len = bytes_to_int32(bits_to_bytes(pDev->button->numButtons));
rep.length += rep.buttons_len;
buttons_size = rep.buttons_len * 4;
buttons = calloc(1, buttons_size);
if (!buttons)
return BadAlloc;
down = pDev->button->buttonsDown;
for (i = 0; i < pDev->button->numButtons && down; i++)
{
if (BitIsOn(pDev->button->down, i))
{
SetBit(buttons, i);
down--;
}
}
} else
rep.buttons_len = 0;
if (pSprite->hot.pScreen == pWin->drawable.pScreen)
{
rep.same_screen = xTrue;
rep.win_x = FP1616(pSprite->hot.x - pWin->drawable.x, 0);
rep.win_y = FP1616(pSprite->hot.y - pWin->drawable.y, 0);
for (t = pSprite->win; t; t = t->parent)
if (t->parent == pWin)
{
rep.child = t->drawable.id;
break;
}
} else
{
rep.same_screen = xFalse;
rep.win_x = 0;
rep.win_y = 0;
}
#ifdef PANORAMIX
if(!noPanoramiXExtension) {
rep.root_x += FP1616(screenInfo.screens[0]->x, 0);
rep.root_y += FP1616(screenInfo.screens[0]->y, 0);
if (stuff->win == rep.root)
{
rep.win_x += FP1616(screenInfo.screens[0]->x, 0);
rep.win_y += FP1616(screenInfo.screens[0]->y, 0);
}
}
#endif
WriteReplyToClient(client, sizeof(xXIQueryPointerReply), &rep);
if (buttons)
WriteToClient(client, buttons_size, buttons);
free(buttons);
return Success;
}
/***********************************************************************
*
* This procedure writes the reply for the XIQueryPointer function,
* if the client and server have a different byte ordering.
*
*/
void
SRepXIQueryPointer(ClientPtr client, int size,
xXIQueryPointerReply * rep)
{
char n;
swaps(&rep->sequenceNumber, n);
swapl(&rep->length, n);
swapl(&rep->root, n);
swapl(&rep->child, n);
swapl(&rep->root_x, n);
swapl(&rep->root_y, n);
swapl(&rep->win_x, n);
swapl(&rep->win_y, n);
swaps(&rep->buttons_len, n);
WriteToClient(client, size, (char *)rep);
}
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